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Finding the Fourth Proportional to 12,356.91, 17,053.76 and 7,052.53

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Solution

The fourth proportional to 12,356.91, 17,053.76 and 7,052.53 is: 9,733.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,356.91 : 17,053.76 = 7,052.53 : x
  2. Step 2: Convert to fraction form
    12,356.91/17,053.76 = 7,052.53/x
  3. Step 3: Cross multiply
    12,356.91x = 17,053.76 × 7,052.53
  4. Step 4: Simplify right side
    12,356.91x = 120,272,129.01
  5. Step 5: Solve for x
    x = 120,272,129.01/12,356.91
  6. Step 6: Final answer
    x = 9,733.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.